Hydraulic baling press



Nov. 2 1926.

H. JACOBSON HYDRAULIC BALING PRESS Filed August 1'7, 1925 Big/Z1 v mum INVENTOR.

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ATTORNEY.

Patented Nov. 2, 1926.

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HENRY JACOBSON, OF MILWAUKEE, WISCONSIN.

HYDRAULIC BALING PRESS.

Application filed August 17, 1925. Serial No. 50,742.

The invention relates to baling presses, and more particularly to baling presses of the hydraulic type.

In hydraulic baling presses it is necessary to limit the extent of movement of the ram or pressing head, but in presses used for baling scrap metal and other hard sub stances the usual forms of stop mechanism for the ram have not been. suitable, and it is one of the objects of this invention to provide stop mechanism for the ram which will prevent the lodgment of scrap, trom the press. upon parts of said mechanism and thus provide: for eflicient operation of the press.

In hydraulic presses it is common to use studs, secured to the flange on the cylinder, for holding or connecting the stufling-box glands thereto. The boring of holes in the cylinder flange weakens the flange and thus makes it liable to rupture; or cracking. To obviate this difficulty I have provided a novel cylinder construction in which the hydraulic cylinder is provided with a double flange, the upper flange only carrying the bolts to connect the stufling box gland to the cylinder, and said bolts having a detachable connection with the upper flange on the cylinder. By this construction strains rdinarily produced on the main cylinder flange, by the stufling-box bolts, areeliminated, and such strains are taken by a separate flange.

The invention further consists in the several -features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In the drawings: Fig. 1 is aview of a press provided with the features embodying the invention. parts being broken away and parts being shown in section, the view being taken looking at one side of the ram;

Fig. 2 is a view similar to Fig. 1, being taken looking at another side of the ram, and parts being broken away;

F 3 is a detail sectional view taken on the line 33 of Fig. 1

In the drawings the numeral l designates a press box, which may be o1": any suitable construction, and 5 a ram adapted to work in said box to compress material therein. The ram 5 is secured to its piston 6 by bolts 7 passing through cooperative flange portions 8 and 9 on the ram and piston. respectively, said piston working in an hydraulic cylinder 10 into which the high tension rods 14 which connect with other parts ot-the press, not shown.

The piston 6 of the ram works in the cylinder 10 and through a stufling-box ineluding packing 15, a follower ring 16 and gland ring 17. The gland ring 17 is usually connected by bolts anchored in a single flange of the cylinder but in the present invention the cylinder is provided. with spaced flanges l8 and 19, the upper flange 19 being designed to take the bolts and thus relieve the lower flange 18 of any strain occasioned by the bolts that connect the gland 17 to the cylinder.

As shown, the gland 17 is provided with a series of holes through which bolts 20 pass, and these bolts are connected to the flange 19 by providing radial slots 21 aliued with said holes in the ring 17 so that the shanks ot the bolts may pass through said slots, and the heads of the bolts are seated against the lower face of the flange 19 and within an annular recess 23 formed between the flanges 18 and 19. The bolts 20 are tightened against the ring 17 by nuts 24: engaging the outer side of said ring.

The use of slots in the flange 19, instead of tapped openings, eliminates the possibility of cracks and strains that may develop during the tapping process that is usuall employed. Thus, it will be noted. that the packing ring gland is secured to the cylinder without imposing a strain on the main flange of thecylinder and in a manner to prevent possible rupturing of the flange to which the bolts are attached.

As is well understood, the passage of pressure fluid through the pipe 11, projection .12 and into the cylinder 10 puts pressure on the piston 6 and lifts the ram which then is raised until it comes against a fixed stop.

In order to eliminate the ditflculties that have been experienced with the usual types of stops, particularly in connection with baling presses for scrap metal, I have provided cooperative stops on the relatively fixed parts of the press and the ram, consisting of hardened steel stop bars 25 secured by bolts 25 to the fixed framework of the press, and similar bars 26 secured by bolts 27 to the ram, and each of these bars has an angular contacting face. 28 which slopes downwardly so that with a vertical press it any scrap metal works out between the ram 5 and the press box it will not lodge between the stops but will fall or slide down the inclined surface of the stops and hence prevent any interference with the proper act-ion of the stop mechanism. v

I desire it to be understood that this invention is not to be limited to any particular form or arrangement of parts except in so far as such limitations are specified in the claims.

hat I claim as my invention is:

1. In an hydraulic press, the combination with a press box, a vertically disposed, hy-

draulically operated ram working in said box, of a fixed stop, and a stop on the ram engageable with said fixed stop for limiting the upward movement of the ram, each of said stops having inclined surfaces to prevent the lodgment between them of any material escaping from the press box.

2. In an hydraulic press, the combination with a press box, a vertically disposed ram working therein, of removable and renewable stops li'or limiting the upward movement of the ram, one of said stops being secured to the relatively fixed parts of the press and the other to the ram, said stops having inclined contacting surfaces to prevent lodgment between them of any material escaping from the press boX.

In testimony whereof, I aflix my signature.

HENRY JACOBSON. 

